Antimony

Overview

English Name:

Antimony

Latin Name:

Stibium

Year Discovered:

Ancient Times

Discovered By:

Unknown

Group:

15

Period:

5

Electrons:

51

CAS Number:

7440-36-0

Cost Per 100 Grams:

$5

Atomic Properties

Electronic Configuration:

[Kr] 5s² 4d¹⁰ 5p³

Ion Charge:

+3, +5

Ionisation Energies:

834.0 kJ/mol

Atomic Radius (Empirical):

160 pm

Atomic Radius (Calculated):

207 pm

Covalent Radius:

140 pm

Van Der Waals Radius:

202 pm

Ionisation Potential of An Atom:

8.64 eV

Electrons Per Layer:

2, 8, 18, 18, 5

Atomic Multiplicities Of The Gas:

1

Atomic Weight:

121.76

Reactivity

Electron Affinity:

103.0 kJ/mol

Valence:

3, 5

Electronegativity:

2.05

Thermal Properties

Melting Point:

630.6°C

Boiling Point:

1587°C

Critical Point:

Pressure: N/A

Temperature: N/A

Thermal Conductivity:

0.050 W/(m·K)

Heat Capacity:

Specific: 0.207 J/(g·K)

Molar: 25.5 J/(mol·K)

Thermal Coefficient:

0.000007

Enthalpy:

Fusion: 18.7 kJ/mol

Vaporisation: 200.0 kJ/mol

Atomization: 132.5 kJ/mol

Curie Temperature:

N/A

Neel Temperature:

N/A

Superconductivity Point:

N/A

Physical and Chemical Properties

State of matter (25° C/ 77°F):

Solid

Density:

Solid: 6.697 g/cm³

Molar Volume (Vmol):

18.06 cm³/mol

Speed of Sound (Vs):

2200 m/s

Hardness:

N/A

Bulk Modulus (K):

40 GPa

Shear Modulus (G):

N/A

Young's Modulus (E):

N/A

Color:

Silvery

Brinell Hardness (MPa):

N/A

Liquid Density (Kg/m^3):

2.07 kg/m³

Hardness of Mohs:

3

Refractive Index:

N/A

Vickers Hardness (MPa):

N/A

Crystal Structure:

Rhombic

Electromagnetic Properties

Electrical Type:

Conductor

Resistivity:

3.0 × 10^-6 Ω·m

Magnetic Type:

Diamagnetic

Superconductivity:

Not applicable

Volume Magnetic Susceptibility:

-1.0 × 10^-5

Mass Magnetic Susceptibility:

-1.5 × 10^-5 m³/kg

Molar Mass Susceptibility:

-3.0 × 10^-4 m³/mol

Electrical Conductivity:

1.0 × 10^6 S/m

Mass (γ_mass):

1.0 × 10^-25 kg

Mass (γ_mol):

1.0 × 10^-22 mol

Volume (γ_vol):

18.06 L

Grid Parameters

Crystal Structure:

Rhombic

Grid Parameters:

N/A

Attitude:

N/A

Debye Temperature:

N/A

Safety and Precautions

Signal Word:

Warning

Hazard Statements:

H351

Precautionary Statements:

P201, P202, P280

RTECS Number:

Not available

Risk:

Flammability: Non-flammable
Health Risk: Toxic
Reactivity: Stable
Specific Risk: None

Importance

Main sources:

Mining, recycling

Main Usage:

Alloys, flame retardants, semiconductors

Nuclear Properties

Radioactive:

No

Isotopes:

Sb-121, Sb-123

Neutron Cross Sectional:

0.045 barns

Half Life (s):

None

Lifetime:

Stable

Prevalence

Universe:

0.00002%

Sun:

0.00002%

Oceans:

0.0000001%

Humans:

0.0000001%

Earth's Crust:

0.0007%

Meteorites:

0.0001%